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Method for producing alcohol using sweet kaoliang straw

A technology for preparing ethanol and sweet sorghum, which is applied in the directions of microorganism-based methods, biochemical equipment and methods, microorganisms, etc., can solve the problems of large consumption, unfavorable development, unreasonable utilization of resources, etc., and achieves easy cultivation, biological The effect of high academic output and wide adaptability

Inactive Publication Date: 2007-08-29
刘明全
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using grain crops as raw materials to produce ethanol energy consumes a large amount of grain, which is the foundation of the national economy. Today, when the world's grain production is insufficient, using a large amount of grain as raw material to produce ethanol is not conducive to people's lives and the national economy development, unreasonable use of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1 The method for preparing ethanol from sweet sorghum straw has the following steps:

[0014] 1. Take sweet sorghum stalks, remove the ears and roots of the sweet sorghum stalks, and cut the sweet sorghum stalks with the ears and roots removed into 15 mm sections to obtain raw scraps;

[0015] 2. Add water to the raw material, adjust the sugar content to 17.5%, put it into the fermentation tank, control the temperature of the material in the fermentation tank at 30°C, and adjust the pH to 4.3 to obtain a liquid material;

[0016] 3. Add alcohol yeast into the liquid material. The weight of the alcohol yeast is 1.0‰ of the weight of the sweet sorghum straw. Stir evenly to obtain the inoculation liquid material;

[0017] 4. Ferment the inoculated liquid material at a temperature of 30°C for 52 to 72 hours to obtain a fermented mash;

[0018] 5. Distill the fermented mash in a distillation tower to obtain ethanol with a volume concentration of more than 95%.

[0019] S...

Embodiment 2

[0020] Example 2 The method for preparing ethanol by mixed fermentation of sweet sorghum straw and sweet sorghum has the following steps:

[0021] 1. Take sweet sorghum stalks, remove the ears and roots of the sweet sorghum stalks, and cut the sweet sorghum stalks with the ears and roots removed into 10-20 mm sections to obtain raw scraps;

[0022] 2. Add water to the raw crushed material, adjust the sugar content to 17%-18%, put it into the fermentation tank, control the temperature of the material in the fermentation tank at 28℃~32℃, and adjust the PH value of 4.2~4.5 to obtain the liquid material;

[0023] 3. Add alcohol yeast into the liquid material. The amount of alcohol yeast is 0.8‰~1.2‰ of the weight of the sweet sorghum straw. Stir evenly to obtain the inoculation liquid material;

[0024] 4. Take the sweet sorghum grains, crush the sweet sorghum grains into sweet sorghum noodles with more than 20 meshes, make the sweet sorghum noodle water slurry according to the weight...

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PUM

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Abstract

The invention is a method for making alcohol with sugar grass stalks, comprising the steps of: (1) taking sugar grass stalks and removing fringes and roots and cutting into 10-20 mm long sections; (2) placing these sections into fermenting cylinder and adding in water, regulating sugar content, temperature and pH value and obtaining liquid material; (3) adding distillery yeast in the liquid material, uniformly blending and obtaining inoculating liquid material; (4) fermenting the inoculating liquid material at 28deg.C-32deg.C for 52-72 h, and obtaining fermented mash; and (5) distilling the fermented mash in distilling tower and obtaining alcohol with a volume concentration of 95% above. And the sugar grass is a high energy crop, easy to plant, and is a new energy source raw material, according with the requirements for circulating economy and sustainable development.

Description

Technical field [0001] The invention relates to a method for preparing ethanol, in particular to a raw material for preparing ethanol. Background technique [0002] As an important chemical raw material, ethanol is widely used in various fields of the national economy. In particular, ethanol has no harmful gas emissions after combustion, so it is a pollution-free clean energy. The current energy sources are mainly fossil energy such as coal and petroleum. The resources of fossil energy are limited. With the continuous exploitation and use of people, fossil energy will gradually decrease or even be exhausted. Ethanol can be produced by fermentation using crops containing sugar or starch as raw materials. It is a renewable energy source. Using crops as raw materials to produce clean energy not only meets the requirements of environmental protection but also meets the requirements of circular economy and sustainable development. In the prior art, the crop raw materials used to produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P7/10C12R1/85
CPCY02E50/16Y02E50/10
Inventor 刘明全
Owner 刘明全
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